UPS Communication Error

What does 0x8002 mean?

The function block output `nErrId` shows 0x8002, indicating that communication with the Uninterruptible Power Supply (UPS) has been interrupted. This prevents the system from reading UPS status or sending control commands.

• Communication link between the system and the UPS is broken.
• UPS is offline or not powered.
• Incorrect serial or network connection to the UPS.
• Faulty UPS communication interface.

Click steps to track your progress.

1. 1

   Check the physical communication cable (e.g., USB, serial) between the Embedded PC and the UPS for loose connections, damage, or dislodgement.

2. 2

   Verify the UPS power supply and operational status directly on the UPS unit itself. Ensure it is powered on and functioning.

3. 3

   Confirm that the Beckhoff UPS software components and relevant drivers are correctly installed and running on the Embedded PC's operating system.